Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from 781 Plumbing & HVAC Corp. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
781 Plumbing & HVAC is a small Malden company covering general plumbing, drain cleaning, gas lines, boilers, furnaces and water heaters, with someone reachable around the clock. Speed is what customers describe. A homeowner whose water heater ruptured overnight in September 2026 had a technician at the door by 8 a.m. who pulled the old tank and put a new one in. A plumbing emergency in August brought someone to the house within 20 minutes. Another customer called on a Friday evening, Alex arrived Saturday morning, and Stanley followed up afterwards to check it had gone well. When an air conditioning system died during the Fourth of July heatwave in 2026, Stanley and Demitri were the ones who revived it. The work runs across both trades. A customer of five years has had a completely new heating system put in at home, including a conversion off oil, and uses the company at their businesses as well. A landlord has had Stan upgrade heating systems, replace hot water heaters and diagnose and fix gas leaks across rental properties. In July 2026 a mini split went in cleanly and was tested before the team left; in June a customer had a pipe and spigot fixed and a condenser sorted out in a single visit. Several people describe being talked out of spending money. In December 2022 a caller was advised over the phone instead of being sold a visit, and in November that year another said they felt no push toward a bigger job. In November 2023 a landlord whose tenant's boiler failed on a Thursday night had already been quoted $23,000 for a replacement by a competitor doing annual maintenance before calling Stanley. In July 2026 the owner came out the same day to evaluate a mini split heating and cooling system free of charge. One thing to settle before booking. The company publishes corporate plumbing licence #4009 on its own website, and the state registry records licence 4009-PL-C, held by 781 Plumbing and Heating, Corp, as expired. Ask for the current licence status in writing — it is the kind of thing to have in hand before permitted work starts. For a burst water heater, a dead condenser in a heatwave or a boiler that quits on a weeknight anywhere around Malden and the northern suburbs, this is a strong call for the response time alone; ask about the licence status and who pulls the permit before the work is scheduled.
Quick clean replacement of our old water heater. I can’t speak to the price because it was a rental unit but it was a great experience
This week my water heater ruptured overnite.i was contacted by 781 plumbing who made arrangements to remove and install a new water heater.8a.m a service person arrived and immediately resolved my problem. The old heater removed,and a new heater installed so very quickly .I was amazed how fast and efficiently the job went. their service person Dima then came upstairs and checked every faucet in the house. He did find a pressure problem with the hot water fixture in the bathroom and resolved the issue quickly.He then rechecked all areas of the heater and sink areas thru out the house.Dima then took me on a tour of all he repaired and installed,and asked if I had any questions of all he had covered. Any question was covered satisfactorily. The next day I received a call back from 781s Mgr. Who inquired of my level of satisfaction and any questions I might have. I can only give a 1000% satisfaction answer of the entire job and professionalism encountered with 781s company.Thank you for a great job done. Stanley m Golembewski P.S.Price covered by contract.
Very fast response time, great work, courteous staff.
Outstanding service! We had a plumbing emergency at our house and called this company. I was honestly impressed that he was at our house within 20 minutes and immediately started helping us. In an emergency, having someone respond that quickly makes a huge difference.Not only was he fast, but he was also professional, knowledgeable, and very attentive throughout the whole process. He took the time to understand the problem, explain what was going on, and make sure everything was taken care of properly days like now It’s hard to find a company that truly cares about their customers, but this is definitely one of them. Great service, great response time, and great attention to detail. I highly recommend them to anyone who needs a reliable plumbing company!
The technician was able to come out the same day and replace our water heater. It was fast and easy - They did great work.
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3 changes recorded — last scanned Sep 8, 2026.
Transparent diagnostics5.0
Repeat, years-long customers5.0
Decades-long customers5.0
Honest, no-upsell service5.0
Rapid response5.0
Fast emergency turnarounds4.5
Diagnoses before replacing5.0
Big-budget renovations4.4